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Part of a symbiotic binary star system containing a red giant and a white dwarf. As in 2019, with mass 67.54 ± 12.79MJ (0.0523-0.0767 M☉) is the lowest known mass hydrogen-burning star. Luhman 16 B and Luhman 16 A are the closest brown dwarf stars to Earth, and the third-nearest star system to the Solar System.
Zooming to RX J1856.5−3754 which is one of the Magnificent Seven and, at a distance of about 400 light years, the closest known neutron star. Neutron stars are the collapsed cores of supergiant stars. They are created as a result of supernovas and gravitational collapse, and are the second smallest and densest class of stellar objects. In the ...
The neutron star's density varies from about 1 × 10 9 kg/m 3 in the crust—increasing with depth—to about 6 × 10 17 or 8 × 10 17 kg/m 3 (denser than an atomic nucleus) deeper inside. A neutron star is so dense that one teaspoon (5 milliliters) of its material would have a mass over 5.5 × 10 12 kg, about 900 times the mass of the Great ...
Stellar evolution is the process by which a star changes over the course of time. Depending on the mass of the star, its lifetime can range from a few million years for the most massive to trillions of years for the least massive, which is considerably longer than the current age of the universe. The table shows the lifetimes of stars as a ...
The most massive type of degenerate star is the neutron star. See Most massive neutron star for this recordholder. Most massive neutron star PSR J0740+6620: 2019 2.14 M Sun: Several candidates exist which have a higher mass, however their mass has been measured by less precise methods and as such their mass value is regarded as less certain ...
Compact object. In astronomy, the term compact object (or compact star) refers collectively to white dwarfs, neutron stars, and black holes. It could also include exotic stars if such hypothetical, dense bodies are confirmed to exist. All compact objects have a high mass relative to their radius, giving them a very high density, compared to ...
Stellar classification. In astronomy, stellar classification is the classification of stars based on their spectral characteristics. Electromagnetic radiation from the star is analyzed by splitting it with a prism or diffraction grating into a spectrum exhibiting the rainbow of colors interspersed with spectral lines.
Stars range in size from neutron stars, which vary anywhere from 20 to 40 km ... 2MASS J0523-1403 is the smallest known star undergoing nuclear fusion in its core. ...